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Finding the Fourth Proportional to 535,601.48, 739,153.13 and 320,700.47

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Solution

The fourth proportional to 535,601.48, 739,153.13 and 320,700.47 is: 442,580.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,601.48 : 739,153.13 = 320,700.47 : x
  2. Step 2: Convert to fraction form
    535,601.48/739,153.13 = 320,700.47/x
  3. Step 3: Cross multiply
    535,601.48x = 739,153.13 × 320,700.47
  4. Step 4: Simplify right side
    535,601.48x = 237,046,750,893.70
  5. Step 5: Solve for x
    x = 237,046,750,893.70/535,601.48
  6. Step 6: Final answer
    x = 442,580.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.